For placeholder to be recognized it needs to be used at least once in curly braces with no other expression, for example, . Then you can use this placeholderName`KEEP_ORIGINAL` in bindings handled by Angular. There are also predefined functions available:

• goToGroupDetails(groupId) – takes the group ID and redirects the user to the group details view, for example:
  <… ng-click="goToGroupDetails(groupId)"> ,
• goToDeviceDetails(deviceId) – takes the device ID and redirects the user to the device details view, for example:
  <… ng-click="goToDeviceDetails(deviceId)"> ,
• getActiveAlarmsStatusClass(alarmsStatus) – takes the alarm status object and returns a CSS class that can be used for styling: none`KEEP_ORIGINAL`, warning`KEEP_ORIGINAL`, minor`KEEP_ORIGINAL`, major`KEEP_ORIGINAL`, critical`KEEP_ORIGINAL`, for example:
  <… ng-class="getActiveAlarmsStatusClass(alarmsStatus)"> .